:root {
  --bg: #07111f;
  --bg-soft: #0d1d34;
  --panel: rgba(15, 30, 51, 0.84);
  --panel-strong: rgba(9, 18, 32, 0.94);
  --text: #edf6ff;
  --muted: #a8bfd9;
  --line: rgba(186, 218, 255, 0.18);
  --accent: #73b8ff;
  --accent-deep: #2b64a3;
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  background:
    radial-gradient(circle at top left, rgba(66, 137, 255, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(83, 173, 255, 0.16), transparent 24%),
    linear-gradient(180deg, #07111f 0%, #0a1628 100%);
  color: var(--text);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

code {
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.95em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem;
  backdrop-filter: blur(16px);
  background: rgba(7, 14, 25, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.site-nav {
  display: flex;
  gap: 1.2rem;
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.88rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
}

.site-nav a:hover {
  color: var(--text);
}

main {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  min-height: calc(100svh - 74px);
  align-items: center;
  padding: 3.5rem 0 2rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 8vw, 6.8rem);
}

.hero-text,
.feature p,
.architecture-grid p,
.section-note {
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.02rem;
}

.hero-text {
  max-width: 38rem;
  margin: 1.4rem 0 0;
}

.developer-meta {
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.98rem;
}

.developer-meta a {
  color: var(--text);
  text-decoration-color: rgba(237, 246, 255, 0.35);
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  margin-top: 1.8rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 1.1rem;
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.9rem;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #08111d;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-visual {
  display: grid;
  gap: 1rem;
}

.logo-panel,
.visual-panel,
.video-frame,
.feature,
.architecture-grid > div {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-strong) 100%);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.logo-panel {
  display: grid;
  place-items: center;
  min-height: 240px;
  padding: 1.5rem;
}

.logo-panel img {
  width: min(100%, 280px);
  aspect-ratio: 1;
  object-fit: contain;
}

.visual-panel {
  padding: 1.3rem 1.35rem 1.45rem;
}

.panel-label {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.visual-panel ul {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.8;
  color: var(--text);
}

.section {
  padding: 4.5rem 0 0;
}

.section-heading {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.section h2 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  max-width: 12ch;
}

.video-frame {
  padding: 0.9rem;
}

.video-frame iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 20px;
  background: #000;
}

.section-note {
  margin-top: 0.8rem;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature {
  padding: 1.45rem;
}

.feature h3,
.architecture-grid h3 {
  margin: 0 0 0.7rem;
  font-size: 1.2rem;
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.architecture-grid > div {
  padding: 1.45rem;
}

.tech-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 0;
  margin: 0;
}

.tech-list li {
  padding: 0.95rem 1rem;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.92rem;
}

@media (max-width: 960px) {
  .hero,
  .feature-list,
  .architecture-grid,
  .tech-list {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 2.2rem;
  }

  .hero h1 {
    max-width: 10ch;
  }

}

@media (max-width: 640px) {
  .site-header {
    padding: 1rem;
  }

  .site-nav {
    gap: 0.8rem;
    font-size: 0.8rem;
  }

  main {
    width: min(100% - 1.2rem, 1120px);
  }

  .hero h1 {
    font-size: clamp(2.7rem, 14vw, 4.4rem);
  }

  .button {
    width: 100%;
  }
}